KEY POINTS
  • The SEC complaint alleges that Musk issued "false and misleading" statements and failed to properly notify regulators of material company events.
  • Sources close to the company told CNBC the company was also expecting to be sued, though Tesla was not named as a defendant in the complaint.
  • In August, Musk tweeted that he was considering taking Tesla private, adding, "Funding secured."

Tesla CEO Elon Musk has been sued by the Securities and Exchange Commission for fraud, according to court documents filed Thursday. Sources close to the company told CNBC the company was also expecting to be sued, though Tesla was not named as a defendant in the complaint.

Shares of the automaker fell more than 13 percent in extended trading Thursday. The stock is roughly 30 percent below its 52-week high of $387.46.